About

Log in?

DTU users get better search results including licensed content and discounts on order fees.

Anyone can log in and get personalized features such as favorites, tags and feeds.

Log in as DTU user Log in as non-DTU user No thanks

DTU Findit
Boolean: (bicycle AND helmet) OR (head AND protection) (always group AND in parenthesis)
Title: title:(climate change)
Author: author:("bohr niels" OR "bohr n") (avoid only full first name)
Phrase: "water pump control" (does not work with wildcards)
Wildcards: wom?n pharm*

More help on how to search

Flexible matching

About search syntax

Search syntax Advanced
Close advanced
{{problem}}
By field Using AND/OR By author
This tool can help you build boolean queries suitable for doing a broad search for different synonyms or spellings of each word. Start via the drop-down below or just start typing in the search field.
{{ row.typeTitle }}: ( )

Since our index often lack the full first name of people it can be difficult to correctly search by author.

Fill in the fields and let us help you build a good query:

If you need to find everything possible, consider only searching by last name.

Use "Starting year" to ignore publications out of year range.

More...

Journal article

Modal analysis of a large-mode area photonic crystal fiber amplifier using spectral-resolved imaging

By Laurila, Marko1,2; Alkeskjold, Thomas T.3; Lægsgaard, Jesper1,2; Broeng, Jes

From

Fiber Optics, Devices and Non-linear Effects, Department of Photonics Engineering, Technical University of Denmark1

Department of Photonics Engineering, Technical University of Denmark2

NKT Group3

We perform modal characterization on an ytterbium-doped large mode area photonic-crystal-fiber (PCF) amplifier using spatial and spectral (S 2) resolved imaging and compare results to conventional cutoff methods. We apply numerical simulations and step-index fiber experiments to calibrate our mathematical and experimental routines of our S2 imaging system.

We systematically analyze higher-order-mode (HOM) content of a polarizing 40-m core double-clad PCF amplifier with various launching and coiling configurations. We demonstrate a HOM suppression of more than -24 dB with variance of 2.3 dB. © 2011 Society of Photo-Optical Instrumentation Engineers (SPIE).

Language: English
Publisher: SPIE-Intl Soc Optical Eng
Year: 2011
Pages: 111604-6
ISSN: 15602303 and 00913286
Types: Journal article
DOI: 10.1117/1.3609816
ORCIDs: Lægsgaard, Jesper and Broeng, Jes
Keywords

Photonic crystal fibers Spectral resolved imaging

Other keywords

holey fibres optical fibre amplifiers optical fibre cladding photonic crystal fibers photonic crystals spectral resolved imaging ytterbium

DTU users get better search results including licensed content and discounts on order fees.

Log in as DTU user

Access

Analysis